摘要
以不同煤种和黏结剂作为原料制备型煤,通过测试型煤冷压强度和热强度,研究不同原料煤质量比及复合黏结剂添加量对型煤强度的影响规律。结果表明:晋城煤与东曲煤的质量比为65∶35时,型煤冷压强度及热强度均可达500 N/球;晋城煤与兴县煤的质量比为77∶23时,型煤冷压强度及热强度分别达到503 N/球和355 N/球。型煤黏结剂在煤粒表面的润湿性越好,越有利于煤粒黏结;在型煤中添加腐植酸钠及通过配煤可以提高型煤的热稳定性。
Briquette was prepared from different coal types and binders.The effects of different coal blending and addition of binders on the cold compressive strength and thermal strength of briquette were studied.The results show that when the mass ratio of Jincheng coal to Dongqu coal is 65∶35,the cold compressive strength and thermal strengh can reach 500 N/ball respectively;when the mass ratio of Jincheng coal to Xingxian coal is 77∶23,the cold compressive strength and thermal strength reach 503 N/ball and 355 N/ball respectively.The better the wettability of the briquette binder on the surface of the coal particles,the better binding force among coal particles.By blending coal and adding sodium humate into briquette,the thermal stability can be improved during briquette combustion.
作者
路广军
申巧
杨凤玲
王宝凤
程芳琴
LU Guangjun;SHEN Qiao;YANG Fengling;WANG Baofeng;CHENG Fangqin(Institute of Resources and Environmental Engineering,Shanxi University,State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources,030006 Taiyuan,China)
出处
《煤炭转化》
CAS
CSCD
北大核心
2019年第5期75-81,共7页
Coal Conversion
基金
国家重点研发计划项目(2017YFC0211401)
关键词
型煤
冷压强度
热强度
黏结剂
配煤
briquette
cold compressive strength
thermal strength
binder
blended coal
